Physics, mathematics, and technology

2013 Issue №4

A mathematical simulation and a numerical investigation of dynamics of intramolecular tautomerny transformation without considering processes of a proton relaxation. Part I. A description of a mathematical model

Abstract

There is a quantum statistical model of prototropic tautomeic transformation caused by vertical transition between different adiabatic potentials with two minima divided by potential barrier offered. Formula for the probability function defining time of tautomer transformation without regard to vibronic relaxation is received.

Download the article

3D-simulation of equatorial F-spread: a comparing MI3 with SAMI3

Abstract

Group of scientists of the Immanuil Kant Baltic Federal University (I. Kant BFU) in 1989 developed a three-dimensional code to study equatorial F-spread (EFS) studying. The Naval Research Laboratory (NRL, Washington, DC, USA) in 2008 developed a three-dimensional code to study equatorial spread F (ESF) also. Comparison of these models is made. Differences in number of ions and the accounting of electrons speeds and inertial terms are found.

Download the article

Creations of a hardware-software complex providing dynamic balance and movement robotic system AR-600

Abstract

Features of architecture and creation of robotic system AR-600 are described. The main objectives of loudspeaker of biped walking and methods of their decisions are considered. Calculations of necessary corners at movement and time of their performance are presented. As the question of creation of the filter of Kalman for system aksilerometr-giroskop-robotic system is considered.

Download the article